Battery charger for a cellular phone battery



FIG. 1 is a top plan view of a battery charger for a cellular phone battery showing my new design;

FIG. 2 is a rear elevational view of a battery charger for a cellular phone battery with the plug prongs in the retracted position;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a perspective view thereof. 

The ornamental design for a battery charger for a cellular phone battery, as shown and described. 